I know this problem exists, but in all my business knowledge immaturity, obviously, I just learnt of this term:
KEY PERSON DEPENDENCY.
It even has its own acronym - KPD (again, obviously).
When you google ‘reliance on key person’, you’ll receive 130,000,000 results.
It’s a big thing.
In the search results this word appears more often than others:
And when you look further into the top solutions to this business problem you find them quite simply as…